Radiator tube



A. E. HUGHES AND J. DlLWOH.H.

RADIATOR TUBE.

APPLxcATloN FILED 111111.15, 1920.

w l f l ALFRED EDWIN HUG-HES AND JOHN DILWORTI-I, OF'STOCKPOR'T,ENGLAND.

enmarca rune. A

Laiaee.

and residents of Stockport, England, have invented certain new andusefulv improve-V ments in or Relating to RadiatorV Tubes, Vof which thefollowing isja specification. f

This invention relates to radiators and theY like and lhas for-its"object to 'provide iinproved means for securing the tubes in position. l`V According tothe invention the radiator or like lcasing isprovidecbwitli a plurality of nipples at one part and af further andlike plurality of nipples at another part. Engaging such nipples is aplurality of tubes each of a length suitable' for engaging the sets ofnipples, and each being conical at one end and having a yieldinglymounted jointing feirule at the other end, or each having a yieldinglymounted ferrule at both ends, whereby water-tight Vjoints can be madebetween the tube ends and nipples, the tubes being removable andreplaceable at will by hand, no soldering or brazing vbeing re# quired.

The invention will be morew particularly described by the aid of theaccompanying drawings, wherein:

Fig. l is a radiator showing the tubes in position.

Fig. 2 is a detail View drawn to an enlarged scale of one of theradiator tubesl in position. n

Fig. 3 is a sectional view of Fig. 2. F ig. 4 shows the bling and Fig. 5is a sectional view with one end of the tubein position in the act ofassembling the parts.

Referring to the drawings, the bottom part a of the radiator casing a isprovided withva series of internally coned nipples Z;

to receive the vconed ends cof the radiatorV tubes c, a packing ring Zof rubber or other suitable material being interposed to ensure a liquidtight joint.` To the top a2 Vof the radiator casing a, a second seriesof vinternally coned nipples e are secured, the internal diameter of thebottom end of which is equal to the external diameter'of the tube 0,andV sufhciently large to allow the same to pass there-tlirough. Theopening is coned, the internal diameter at the top being larger than theexternal diameter of the tube to allowv Specification of Letteisment.v

parts ready for assemfrateniea Apr. 11, 1922;;

Application flied' March i5, i920. semina. 366,045. Y

the latter tdtilt'for apurposehereinafter explained.

`ilidably mounted atthe top of the tube c isa ferrule' f, thetopfof-.which is refcessedV at f to receive a packing ring g. "The ferule j" is normally/'forced,towards the 'end the tube. e by ii'neansA ofthesprin'g h,

which reacts againstthe vcollar i secured y to the tube c. A f VvlheniVassembling thev Y. parts the top end of' the tubeis placed in the lowerend v of thenipple e and Y,forcedrupwards against the" pressurelof Vthespring'li, until the end c of the tube c is above the t-opof the nippleZi' as seen iii ig. 5, the 'conical conformation of :the nipple allowingthe rnecessary ltilting V downwardly to Vform a liquid tight joint withthe nipple b.

ing ring g which is compressed against the end of the nipple e so astoexpand and forni a liquid tight joint .for the top end ofj` the tubec.

lf desired the spring it may be arranged Y. on or in the nipple e and aferrule or washer provided tor make joint with theV end of the tube o ora collar thereon. It is preferred te arrange the yielding spring at thetop of the tube so that it is not affected by the weight of the tubewhen sudden shocks or jars take place but it will be understoodl that-ifdesired said yielding jointv may be arranged at the bottom of the tube.

By these means the necessity for soldered joints is dispensed with andthe tubes can not only be readily assembled but can be pressing ofthespring when temperature variations cause contraction or expansion ofV Ythe parts a perfect joint is maintained forv an indefinite period.

As a further modiiication the tubes may be the same at -both ends and befitted with the ferrule, ycollar andV spring atY both ends.

Y What we' claim is;-" 'f Y .Y j

l. A radiator comprising a v casing, to

gether with tubeseach provided with a fer;`V

rule slidably*mountedV t-hereon anda spring to force the same outwards,one end of eachV cf saidtubes being adapted torenter sockets 1 j jvThetube is now movedinto n axiallf alignment withV the nipples` andwhen released the spring L forces the conedV end At the saine timethe-up n ward pressure of the spring L forces the ferrule upwards toexert pressure on the packe iio in the radiator While the other end isadapted to enter a hole in a nipple on the radiator said hole beinglarger in diameterl than the external diameter ot the tube and thearrangement being such vthat one end ofthe tubing is adapted to entersaid hole against the `pressure of the spring andy be subsequently movedinto axial alignment with the seating for the other end of the tube thespring acting to maintain a liquid tight joint at both'ends of the tube,substantially as described.

2.- A-radiator comprising a casing, a plurality oli-nipples secured toone part of the casing and aflfurther and like plurality of nipplessecured to anothery part of the casing, aplurality of lengths of tubingandY each length'o't' tubing at one endr being conical,

and at the other end having a iXed collar and a loose errule, and ineansfor yield- Vingly holding the terrule and tube in engagement with thenipples, substantially as herein set torth.

3. 'radiator comprising a casing, a plu rality ot' nipples secured toone part of said cash'ig, and each nipple having` a corneal interior,the narrowest part being furthest 'from that part of the casing to Whichthe nipple is secured, a further and like plurality oinipples secured toanother :part of the casing, and each having a conical interior with thenarrowest part nearest that part of the casing to which the'nipple issecured, and a plurality of lengths of tubing- ALFRED EDWIN HUGHES.'JOHN DILVORTH.

VNWitnesses 'HL 1J UNCA,

lV. `HARMsLrr'rLn.

